The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 1997
Filed:
Feb. 20, 1996
Werner Keller, Steinhausen, CH;
Walter Toaldo, Zug, CH;
Hans Muller, Steinhausen, CH;
Werner Plattner, Hunenberg, CH;
Anton Pfyl, Affoltern a.A., CH;
Stopinc AG, Baar, CH;
Abstract
A metallurgical vessel has a refractory head piece and a vessel outlet at the refractory head piece. A sliding gate valve for this metallurgical vessel includes a housing frame that is mounted to the vessel at the outlet so as to be removable therefrom. A slider unit is mounted in the housing frame having a sliding plate therein. A refractory base plate is also mounted in the housing frame, and has an upper side with a plane sliding surface that is engaged with the refractory head piece and a lower side having a lower sliding surface that is parallel to the plane sliding surface. The sliding plate is pressed against the lower sliding surface of the refractory base plate. The refractory base plate is fixed in the housing frame in a direction parallel to the sliding surfaces of the refractory base plate, but is movable in the housing frame in a direction perpendicular to the sliding surface of the refractory base plate. Spring elements bias the sliding plate against the lower sliding surface of the refractory base plate, and the refractory base plate against the refractory head piece. By being able to easily remove the housing frame, both the refractory base plate and the sliding plate can be easily and quickly exchanged as necessary.